根据本发明，改善了冰箱的使用便利性。
According to the present invention, the use convenience of a refrigerator is improved.
增加了人们使用电梯的便利性和安全性。
The rotating elevator increases convenience and safety for people to use the elevator.
增加了人们使用电梯的便利性和安全性。
The rotating elevator increases convenience and safety for people to use the elevator.
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